ATA 186 using SCCP, ongoing calls are drop

[s-cortes]

Hi Guys,

Have you experience ongoing calls are drop when dial from/to a phone connected to an ATA 186/188? I'm having a problem solving this kind of scenario. My config looks like this, I have an MCS with CCM 3.3(4) with one 7940, Cisco IP Softphone, and one ATA 188. Whenever I made a conversation from/to the ATA phone, within a minute or less the ongoing conversation will drop. I have already tried three different firmwares for the ATA but still the problem occurs. Can anybody shed light why I'm experiencing this? What are the possible solutions to this problem?

Your utmost reply is highly appreciated.

Thanks,

Sherwin

[ebreniz]

I have never heard of any issues so , Can you please check out the configuration details from the document below.

http://www.cisco.com/en/US/products/hw/gatecont/ps514/products_configuration_example09186a00800a892f.shtml